28732620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{337}}^1$

素因数の和:392

約数の個数: 144

約数和(自身を含む): 97100640

約数和(自身を除く): 68368020

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 29, 30, 35, 42, 49, 58, 60, 70, 84, 87, 98, 105, 116, 140, 145, 147, 174, 196, 203, 210, 245, 290, 294, 337, 348, 406, 420, 435, 490, 580, 588, 609, 674, 735, 812, 870, 980, 1011, 1015, 1218, 1348, 1421, 1470, 1685, 1740, 2022, 2030, 2359, 2436, 2842, 2940, 3045, 3370, 4044, 4060, 4263, 4718, 5055, 5684, 6090, 6740, 7077, 7105, 8526, 9436, 9773, 10110, 11795, 12180, 14154, 14210, 16513, 17052, 19546, 20220, 21315, 23590, 28308, 28420, 29319, 33026, 35385, 39092, 42630, 47180, 48865, 49539, 58638, 66052, 68411, 70770, 82565, 85260, 97730, 99078, 117276, 136822, 141540, 146595, 165130, 195460, 198156, 205233, 247695, 273644, 293190, 330260, 342055, 410466, 478877, 495390, 586380, 684110, 820932, 957754, 990780, 1026165, 1368220, 1436631, 1915508, 2052330, 2394385, 2873262, 4104660, 4788770, 5746524, 7183155, 9577540, 14366310, 28732620]

約数ペア:

[(1, 28732620), (2, 14366310), (3, 9577540), (4, 7183155), (5, 5746524), (6, 4788770), (7, 4104660), (10, 2873262), (12, 2394385), (14, 2052330), (15, 1915508), (20, 1436631), (21, 1368220), (28, 1026165), (29, 990780), (30, 957754), (35, 820932), (42, 684110), (49, 586380), (58, 495390), (60, 478877), (70, 410466), (84, 342055), (87, 330260), (98, 293190), (105, 273644), (116, 247695), (140, 205233), (145, 198156), (147, 195460), (174, 165130), (196, 146595), (203, 141540), (210, 136822), (245, 117276), (290, 99078), (294, 97730), (337, 85260), (348, 82565), (406, 70770), (420, 68411), (435, 66052), (490, 58638), (580, 49539), (588, 48865), (609, 47180), (674, 42630), (735, 39092), (812, 35385), (870, 33026), (980, 29319), (1011, 28420), (1015, 28308), (1218, 23590), (1348, 21315), (1421, 20220), (1470, 19546), (1685, 17052), (1740, 16513), (2022, 14210), (2030, 14154), (2359, 12180), (2436, 11795), (2842, 10110), (2940, 9773), (3045, 9436), (3370, 8526), (4044, 7105), (4060, 7077), (4263, 6740), (4718, 6090), (5055, 5684)]